African penguin

The African penguin is the only penguin that breeds on the African continent, nesting on offshore islands and a small number of mainland colonies along the coasts of South Africa and Namibia. It is a banded penguin, marked with a black horseshoe across the white chest and a pattern of black spots unique to each bird. Bare pink glandular patches above the eyes flush with blood to shed heat, an adaptation to a far warmer climate than most penguins face. The species feeds mainly on sardine and anchovy, and its fortunes track those fisheries closely. Numbers have collapsed over the past century — from historic populations in the hundreds of thousands of pairs to a small fraction of that — driven by the historic harvesting of guano nesting substrate, egg collection, oil spills, and competition with commercial purse-seine fishing for its prey.

About the African penguin

The African penguin, also called the Cape penguin or South African penguin, is confined to southern African waters and is the only penguin species found in the Old World. Like all penguins, it can't fly; its wings have flattened into stiff flippers built for swimming rather than air. Adults stand 60 to 70 cm (24–28 in) tall and weigh an average of 2.2 to 3.5 kg (4.9–7.7 lb). Distinctive pink patches of bare skin sit above each eye, paired with a black facial mask, and the body is sharply divided between black upperparts and white, spotted underparts marked with a black band — a pattern known as countershading, which makes the bird harder for predators to spot both from above and below in the water.

The species was first illustrated for science in 1747 by the English naturalist George Edwards, who called it "The Black-Footed Penguin" based on two preserved specimens sent to London. Linnaeus initially lumped it in with the albatrosses in 1758, but it was later placed in the genus Spheniscus — Greek for "wedge," a reference to its thin, wedge-shaped flippers — alongside the Humboldt, Magellanic, and Galápagos penguins, its closest relatives. Its species name, demersus, is Latin for "plunging." Each bird's chest markings, a mix of stripes and spots, are unique to the individual, much like a fingerprint. Males run slightly larger than females and have longer bills. Juveniles lack the adult's crisp black-and-white pattern, showing instead grayish-blue to brown upperparts and plain pale underparts until they molt into adult plumage.

The African penguin breeds only along the southern and southwestern coast of Africa, in colonies spread across 27 islands between Namibia and Algoa Bay near Port Elizabeth, South Africa — a distribution that gave the Penguin Islands their name. Two mainland colonies were established near Cape Town in the 1980s, at Boulders Beach and Stony Point, likely made possible by a decline in predator numbers; a third mainland colony exists in Namibia. Boulders Beach has since become a tourist draw, with penguins tolerating visitors at close range.

Behavior and diet

African penguins are pursuit divers, foraging in the open sea for pelagic fish such as sardines, South African mullet, Cape horse mackerel, and anchovies, along with squid and small crustaceans like krill and shrimp. They typically stay within 20 km (12 mi) of shore and can eat up to 540 grams (1.19 lb) of prey a day, rising past 1 kg (2.2 lb) when feeding older chicks. As sardine numbers near their habitat have declined, the birds have shifted more toward anchovies, a less fatty, lower-protein substitute that appears adequate but not ideal. A typical foraging dive reaches an average depth of 25 m (82 ft) and lasts 69 seconds, though the record is 130 m (430 ft) and 275 seconds.

The species is monogamous, breeding in colonies where pairs return to the same site each year. Breeding peaks from March to May in South Africa and November to December in Namibia. A clutch of two eggs is laid in a burrow dug into guano or in a nest under boulders or bushes, and both parents share roughly 40 days of incubation. At least one parent guards the chicks for about a month, after which the chicks join a crèche with others while both parents forage at sea. Chicks fledge at 60 to 130 days depending on food availability, then head to sea alone for one to nearly two years before returning to their natal colony. Adults molt once a year, a process that takes about three weeks, during which they can't swim and must fast, losing roughly half their body weight in the process. Breeding success tracks food supply closely: birds at the Robben Island colony laid larger eggs, bred earlier, and fledged more chicks when prey was abundant.

Range and habitat

The African penguin is limited to the coasts of Namibia and South Africa, breeding on 24 to 27 islands between Namibia and Algoa Bay plus a small number of mainland sites, including Boulders Beach and Stony Point near Cape Town and one colony in Namibia. No colonies exist outside this southwestern African coastline, though young, wandering birds are occasionally seen further afield. Breeding populations are also maintained in zoos worldwide, separate from the wild range.

The population has collapsed over roughly two centuries. An estimated 4 million existed at the start of the 19th century; only about 10% of the 1.5 million counted in 1910 remained by the end of the 20th century. By 2010 the total population was estimated at just 55,000, and by 2023 the breeding population across South Africa and Namibia had fallen below 10,000 pairs — a decline of about 95% from pre-industrial numbers.

Conservation status

The African penguin is listed as Critically Endangered (CR). At the rate of decline recorded between 2000 and 2010, the species was projected to be extinct in the wild by 2026, and after the 2023 reclassification to critically endangered, experts suggested it could become functionally extinct by around 2035 if the trend continued. Threats include habitat loss, overfishing that depletes the sardines and anchovies it depends on, and climate change. Historically, the species also suffered from direct human exploitation: its eggs were collected and sold as a delicacy into the 1970s, and the removal of guano from breeding islands for use as fertilizer eliminated the burrowing material penguins relied on for nesting. Oil spills, a threat dating to the 1930s, remain an ongoing source of both chronic and acute harm.

In response to the decline, South African conservation groups SANCCOB and BirdLife South Africa, together with the Biodiversity Law Centre, brought litigation arguing that the government was constitutionally obligated to prevent the species' extinction. On March 18, 2025, a settlement was reached in which the government agreed to establish larger, full-time no-fishing zones around six key breeding areas — a concrete protection measure that followed years of only partial, largely ineffective fishing closures.